No. I just think in time it will be far less accepted than they expected it to be.
Sociologically speaking that's not how it tends to go.
Abortion was made legal in all states - many, many people still find it immoral. They don't accept it as normal.
When people are confronted with the reality of a humanity being denied the essentially decent ones have trouble reconciling a studied indifference to it. It happened with slavery and it's happening with abortion.
It isn't, however, a very good parallel for gay marriage, which began as an opposition to denying the right of the denied group.
Liberals have won a series of victories on social issues. Most Americans aren’t thrilled about it.
Rather, most aren't as happy about other related issues and it colors the original one.
Here's the thing. If gay advocacy groups and the like leave pastors and churches alone then by next year those numbers will be back up. If the fringe hits a consistent and militant course of action the general opinion may decline further. But in either event the practical outcome will be...nothing much.